Juicing is the process of extracting juice from plant tissues such as fruit or .
Juicing is different from buying juice in the supermarket because it focuses on fresh pressed fruits and vegetables. Residential juicing is often practiced for dietary reasons or as a form of alternative medicine. Becoming first popular in the early 1970s, interest in juicing has since increased. Films such as Fat, Sick and Nearly Dead, Food Matters, and Hungry for Change have increased the sales of juicers.
In America, juicing was popularized by Gayelord Hauser, Jay Kordich and Norman W. Walker.Barrett, Stephen; Herbert, Victor. (1994). The Vitamin Pushers: How the "Health Food" Industry is Selling America a Bill of Goods. Prometheus Books. pp. 161-162. Laskow, Sarah. (2014). "The Man Who First Juiced" . The Atlantic. Retrieved January 2, 2020.Shoshi Parks. (2018). "American women’s obsession with being thin began with this ‘scientist’" . Timeline.com. Retrieved January 2, 2020.
Juicing removes the fiber content of the fruit or vegetable, and the full benefits of the plant is thus not experienced. Re-adding fiber to the juice cannot be equated to whole fruits. There is a loss in non-extracted , a class of phytonutrients, in fruit juice compared to whole plant foods. Most polyphenols are bound to the plant fibers, and constitute the major portion of dietary polyphenols. There is therefore a marked loss of phytonutrients in consuming fruits and vegetables through the juicing process alone.
The American Cancer Society says, "there is no convincing scientific evidence that extracted juices are healthier than whole foods".
Juicing may not be the best way to extract all of the nutritional value from fruits and vegetables. One study has shown that when juiced grapefruit was compared with blended, the latter was superior. Smoothies, which are the blending of fruit into juice, not the extraction, leave pulp and seeds within the drink leading to better nutrition.
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